Pulsation dampening assembly

Abstract

The present disclosure provides a pulsation dampening assembly for a compressor having an outlet port configured for supplying compressed refrigerant from a compression mechanism of the compressor. The pulsation dampening assembly includes a pulsating disc and a spring. The pulsating disc and the spring are disposed within the outlet port. The pulsating disc includes a plurality of apertures in fluid communication with the compression mechanism. The spring includes a first end engaging the pulsating disc and a second end engaging the outlet port. The pulsating disc is translatably disposed within the outlet port between an operative state and an inoperative state.

What is claimed is: 
     
       1. A pulsation dampening assembly for compressors, said pulsation dampening assembly adapted to be disposed in an outlet port configured in a housing of a compressor for supplying compressed refrigerant outside the compressor, said assembly comprising:
 an insert adapted to be attached to the outlet port, said insert comprising a base, a wall extending from said base, and a through-hole defined by a first diameter portion and a second diameter portion of said wall, wherein said first diameter portion comprises a plurality of first apertures located adjacent to said second diameter portion, said base abutting the housing of the compressor when said insert is attached within the outlet port; 
 a first helical spring and a second helical spring co-axially spaced apart within said through-hole of said insert; and 
 a pulsating disc positioned between said first and second helical springs in said through-hole, said disc comprising:
 a cylindrically shaped lower portion having an open bottom end for facilitating entry of compressed refrigerant in said lower portion and a plurality of second apertures in a wall of said lower portion, each second aperture and each first aperture facilitating exit of compressed refrigerant from said lower portion; 
 a flange integral with said cylindrically shaped lower portion and located on a top end of said cylindrically shaped lower portion whereby a bottom surface of said flange seals said top end, said flange comprising a plurality of recesses equidistantly located along a periphery of said flange, a location of each recess corresponding to a location of each second aperture for facilitating passage of compressed refrigerant exiting said second apertures; and 
 a spring supporter integral to said flange and located on a top surface of said flange, said supporter adapted to facilitate said first helical spring to rest on said top surface; 
 
 wherein said pulsation dampening assembly is adapted to be displaceably configured between an operative state wherein said first apertures and said second apertures are aligned to facilitate exit of compressed refrigerant and an inoperative state wherein said first apertures and said second apertures are not aligned. 
 
     
     
       2. The pulsation dampening assembly of  claim 1 , wherein an inner side of the wall of said insert forming said second diameter portion comprises an upper shoulder and a retainer integral with said inner side of the wall and at least one vertical groove extending from said upper shoulder to said retainer. 
     
     
       3. The pulsation dampening assembly of  claim 2 , wherein said second helical spring rests on the retainer of said second diameter portion. 
     
     
       4. The pulsation dampening assembly of  claim 2 , wherein an outer side of the wall of said cylindrically shaped lower portion comprises at least one aligning element extending from said top end to said bottom end of said lower portion, said aligning element complementary to the vertical groove. 
     
     
       5. The pulsation dampening assembly of  claim 2 , wherein in said inoperative state, said flange rests on the upper shoulder of said second diameter portion. 
     
     
       6. The pulsation dampening assembly of  claim 1 , wherein an outer side of the wall of said insert forming said second diameter portion comprises a ring located at a lower portion of said outer side of the wall, said ring being integral with said outer side and said base, said ring and said base adapted to lock said insert in said outlet port. 
     
     
       7. The pulsation dampening assembly of  claim 1 , wherein the outer side of the wall of said cylindrically shaped lower portion engages with the inner side of the wall of said insert forming said second diameter portion. 
     
     
       8. The pulsation dampening assembly of  claim 1 , wherein said bottom end of said cylindrically shaped lower portion rests on said second helical spring. 
     
     
       9. The pulsation dampening assembly of  claim 1 , wherein said recesses are arcuate shaped recesses. 
     
     
       10. The pulsation dampening assembly of  claim 1 , wherein said supporter is ring shaped and the outside of the wall of said supporter engages with the inside of said first helical spring. 
     
     
       11. The pulsation dampening assembly of  claim 1 , wherein in said operative state, id first apertures and said second apertures are co-axial. 
     
     
       12. A pulsation dampening assembly for a compressor having an outlet port configured for supplying compressed refrigerant from a compression mechanism of said compressor, said pulsation dampening assembly comprising:
 a pulsating disc disposed within said outlet port and having a first plurality of apertures in fluid communication with said compression mechanism; and 
 a spring disposed within said outlet port and having a first end engaging a first side of said pulsating disc and a second end engaging said outlet port, 
 wherein said pulsating disc is translatably disposed within said outlet port between an operative state and an inoperative state, and 
 wherein the pulsating disc includes a cylindrically shaped lower portion, a flange, and a spring supporter, the cylindrically shaped lower portion having an open bottom end and a second plurality of apertures in a wall of said lower portion, and the flange including a plurality of recesses equidistantly located along a periphery of the flange. 
 
     
     
       13. The pulsation dampening assembly of  claim 12 , further comprising an insert having a second plurality of apertures, wherein said first plurality of apertures is in fluid communication with said second plurality of apertures in the operative state, and wherein said first plurality of apertures is fluidly isolated from said second plurality of apertures in the inoperative state. 
     
     
       14. The pulsation dampening assembly of  claim 12 , further comprising a second spring disposed within said outlet port, said second spring having a first end engaging a second side of said pulsating disc and a second end engaging said outlet port. 
     
     
       15. The pulsation dampening assembly of  claim 12 , wherein said spring includes a leaf spring. 
     
     
       16. The pulsation dampening assembly of  claim 12 , wherein, the flange is integral with the cylindrically shaped lower portion and located on a top end of the cylindrically shaped lower portion, a location of each recess corresponds to a location of each aperture of the second plurality of apertures, and the spring supporter is integral to the flange and located on a top surface of the flange. 
     
     
       17. A pulsation dampening assembly for a compressor having a port configured for supplying compressed refrigerant from an outlet of a compression mechanism of said compressor, said pulsation dampening assembly comprising:
 an insert disposed within said port and defining a through-hole having a first diameter portion and a second diameter portion, wherein the said first diameter portion comprises a plurality of first apertures located adjacent to said second diameter portion; 
 a first helical spring disposed said through-hole of said insert; and 
 a pulsating disc disposed in said through-hole, said disc comprising:
 a cylindrically shaped lower portion having an open bottom end for facilitating entry of compressed refrigerant in said lower portion and a plurality of second apertures in a wall of said lower portion, each second aperture and each first aperture facilitating exit of compressed refrigerant from said lower portion; 
 a flange integral with said cylindrically shaped lower portion, a bottom surface of said flange configured to seal said open bottom end, said flange comprising a plurality of recesses equidistantly located along a periphery of said flange, a location of each recess corresponding to a location of each second aperture for facilitating passage of compressed refrigerant exiting said second apertures; and 
 a spring supporter integral to said flange and located on a top surface of said flange, said first helical spring disposed on said top surface, 
 
 wherein said pulsation dampening assembly is adapted to be displaceably configured between an operative state wherein said first apertures and said second apertures are aligned to facilitate exit of compressed refrigerant and an inoperative state wherein said first apertures and said second apertures are not aligned. 
 
     
     
       18. The pulsation dampening assembly of  claim 17 , wherein said insert abuts an inner portion of the housing of the compressor when said insert is attached within the port. 
     
     
       19. The pulsation dampening assembly of  claim 17 , wherein said insert is disposed within said outlet of the compression mechanism when said insert is attached within the port. 
     
     
       20. The pulsation dampening assembly of  claim 17 , wherein said first helical spring is disposed within said first diameter portion of said through-hole, said first diameter portion being greater than said second diameter portion.